The primary headquarters for the Alliance to Restore the Republic was situated on the planet known as Orion IV. This relocation occurred after the Rebels had to evacuate their original base situated on Brigia, due to it being marked as a target by the Galactic Empire during the execution of Operation Strike Fear. Nevertheless, the Orion IV base subsequently became the next objective within Operation Strike Fear, resulting in the Empire initiating a full-scale assault which caused the base's annihilation and the subsequent capture of numerous Rebel members.